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Thread: OD reduction sleeves for boring bar tool holder

  1. #1

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    petertha's Tools

    OD reduction sleeves for boring bar tool holder

    My 250 series boring bar tool holder is meant for 1" OD round shank boring bars & that's the only size sold. But more often I use smaller OD bars like .500" or 0.625". So I made these split sleeves from steel cut offs. They hold the bar securely with the same cap screw clamping mechanism & of course you can tweak the boring bar rotation angle before securing. Nice thing is, just like any other cutting / tool holder, you can temporarily remove it & re-install the exact same way preserving setup. The sleeves go into either end of the block as a pair, which was easier to machine than a single, long (+2") long split sleeve.

    OD reduction sleeves for boring bar tool holder-img_0914_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_0915_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_0916_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_0917_edited-1.jpgOD reduction sleeves for boring bar tool holder-img_5525_edited-1.jpg

  2. The Following 9 Users Say Thank You to petertha For This Useful Post:

    j.bickley (01-07-2018), LMMasterMariner (01-09-2018), olderdan (01-07-2018), Paul Jones (01-07-2018), PJs (05-15-2018), rossbotics (01-09-2018), Seedtick (01-07-2018), Starman (01-07-2018), Toolmaker51 (05-15-2018)

  3. #2

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    Great idea. I'm in the same predicament and have been wondering about how to get around it. Thanks!!
    ---Joe

  4. #3
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    Thanks petertha! We've added your Boring Bar Holder Sleeves to our Machining category,
    as well as to your builder page: petertha's Homemade Tools. Your receipt:





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